| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] should have been [v-ing] [prep] | 23 |
|
| 2 | [pers pn] should have been [v-ing] [prep] | 23 |
|
| 3 | [pers pn] should [verb] been [v-ing] [prep] | 23 |
|
| 4 | [pers pn] should [vb infin] been [v-ing] [prep] | 23 |
|
| 5 | he should [verb] been [v-ing] [prep] | 7 |
|
| 6 | they should [verb] been [v-ing] [prep] | 5 |
|
